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application the connor-winfield scg2000 series provides high precision phase lock loop frequency translation for the telecommunication applications. scg2000 series is well suited for use in line cards, service termination cards and similar functions to provide reliable reference, phase locked, synchronization and low phase gain for tdm, pdh, sonet and sdh network equipment. the scg2000 series provides a jitter filtered, wander following output signal synchronized to a superior stratum or peer input reference signal. features ? 3.3v high precision pll tri-state capability active alarms guaranteed free run 20ppm 1 sec. acquisition time scg2000 series synchronous clock generators pll 2111 comprehensive drive aurora, illinois 60505 phone: 630-851-4722 fax: 630- 851- 5040 www.conwin.com bulletin sg035 page 1 of 20 revision 00 date 23 aug 04 issued by mbatts
data sheet #: sg035 p age 2 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice functional block diagram figure 1 alarm detection reference input (pin 8) divider dpfd analog filter divider free run control free run enable (pin 5) input freq. select a (pin 14) lol alarm output (pin 7) vcxo lor alarm output (pin 6) oscillator output (pin 9) optional oscillator output (pin 1) reference output (pin 1) (not available on models with optional oscillator output) input freq. select b (pin 13) tri-state enable (pin 10) also enter a free run state which will guarantee a 20 ppm accurate output. additionally the free run mode may be entered manually by asserting a high signal to the free run enable pin. the outputs, except the oscillator output, may be put into the tri-state high impedance condition for external testing purposes by asserting a high signal to the tri-state enable pin. the scg2000 series are 3.3 volt components that typically draw less than 100 ma. all models have an acquisition time of approximately 1.0 second and can be used in applications that require temperature rating of 0 - 70 c. all models have a 33 ? resistor in series with the oscillator output. the scg2000 maximum pac kage dimensions are .78? x .83? x .35? on a six layer fr4 board with surface mount pins. parts are assembled using high temperature solder to withstand surface mount reflow process. general description the scg2000 series provides high precision phase lock loop frequency translation for the telecommunication applications. the scg2000 products generate a cmos output from an intrinsically low jitter, voltage controlled crystal oscillator. most models provide a jitter attenuated, internal reference that is connected to a reference output pin. scg2000 series is well suited for use in line cards, service termination cards and similar functions to provide reliable reference, phase locked, synchronization for tdm, pdh, sonet and sdh network equipment . the scg2000 series provides a low phase gain (<0.2db), jitter filtered, wander following output signal synchronized to a superior stratum or peer input reference signal. the scg2000 series include the following features: free run, tri-state and alarm outputs for loss-of-reference, (lor), loss-of-lock, (lol). during the lor alarm, the scg2000 will model comparison table tab l e 1 max model input duty reference output oscillator output notes ref freq cycle (pin #1) (pin #9) scg2000 8-64 khz 40/60 = input ref freq. 1. 544 mhz to 125.0 mhz basic model scg2010 19.44 mhz 40/60 8 khz 19.44 mhz scg2020 19.44 mhz 40/60 19.44 mhz 77.76 mhz scg2030 8-64 khz 45/55 = input ref f req. 1. 544 mhz to 125.0 mhz tight duty cycle scg2050 8-64 khz 40/60 19.44 mhz 77.76 mhz scg2070 19.44 mhz 40/60 51.84 mhz, 77.76 mhz 51.84 mhz, 77.76 mhz ref output = osc output *features which differentiate a model from the base model (scg2000) are highlighted in boldface color and in the notes column.
data sheet #: sg035 p age 3 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice typical application figure 2 pin description table 2 all scg2000 models pin # connection description 1 reference output output frequency is dependent on scg model 2 tck jtag pin that is used only by connor-winfield for programming. do not connect 3 tms jtag pin that is used only by connor-winfield for programming. do not connect 4 ground ground 5 free run enable/tdi free run enable pin. 1 = free run at nominal frequency 20ppm. input is pulled to gnd 6 loss of reference (lor) alarm indicator. 1 = the reference has been lost. 7 loss of lock (lol) alarm indicator. 1 = phase lock has been lost 8 reference input input reference frequency 9 oscillator output output frequency is dependent on scg model 10 tri-state enable tri state control for all outputs except oscillator output. 1 = hi-z, 0 = normal. input is pulled to gnd. 11 vcc 3.3v supply voltage. 12 tdo jtag pin that is used only by connor-winfield for programming. do not connect 13 input f req. select b con trol pin b used to select input frequency. input is pulled to gnd. 14 input f req. select a con trol pin a used to select input frequency. input is pulled to gnd. input select mux mux mux mux system select bits system signal cw's stm/mstm module cw's stm/mstm module cw's scg 2000/4000 cw's scg 2000/4000 a b s y a b y s a b a b s y s y timing card #1 timing card #n line card 1 rcv rcv clock out clock out line card #n
data sheet #: sg035 p age 4 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice absolute maximum rating table 3 all scg2000 models symbol parameter minimum nominal maximum units notes vcc power supply voltage -0.5 4 volts v1 input voltage -0.5 5.5 volts ts storage temperature -65 150 deg. c input and output characteristics table 5 all scg2000 models symbol parameter minimum nominal maximum units notes v ih high level input voltage 2 5.5 v v il low level input voltage 0 0.8 v t io i/o to output valid 10 ns c o output capacitance 10 pf v ho high level output voltage l oh = -4ma 2.4 vcc min. v io low level output voltage l ol = 8ma 0.4 vcc max. t ir input reference signal pulse width 30 ns specifications table 4 all scg2000 models parameter specifications notes voltage 3.3v 5% 1.0 current 100 ma typical temperature range 0 to 70c input jitte r tolerance 31.25us typical (scg2000, scg2030, scg2050) (input jitter frequencies > 10 hz) >1 us typical (scg2010, scg2015, scg2020, scg2070) jitter bandwidth <15 hz acquisition time approx 1.0 second 2.0 capture/pull-in range 25 ppm minimum output duty cycle 40/60 % min/max @ 50% level output rise and fall time 3 ns @ 20% to 80% output level output load 30 pf alarms lor, lol status on seperate outputs free run accuracy 20 ppm package fr4 sm 0.78" x .83" x 0.35" (maximum) tdev 60 ps typical mtie 750 ps typical reference output/oscillator output offset 8 ns static offset 26 ns maximum 3.0, 5.0 dynamic offset 20 ns maximum 4.0, 5.0 notes: 1.0: requires e xter nal regulation ` 2.0: f rom a 20 ppm offset in reference frequency 3.0: offset between reference input and reference output @ room temp. 4.0: offset change between reference input and reference output over temper ature range from room temperature. 5.0: the scg2015 will maintain an offset/skew, between the reference input and the oscillator output, of x 1ns. x is tbd.
data sheet #: sg035 p age 5 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice maximum package dimensions figure 3 recommended footprint dimensions figure 4 0.640" [16.26mm] 0.800" [20.32mm] 0.080" [2.03mm] 0.650" [16.51mm] 0.050" [1.27mm] 0.100" [2.54mm] 0.050" [1.27mm] output jitter specifications table 6 all scg2000 models jitter bw 10 hz - 20 mhz sonet jitter bw 12 khz - 20 mhz frequency (mhz) ps (rms) m ui ps (rms) m ui 1.544 30 typ. 0.046 typ. 4 typ. 0.006 2.048 30 typ. 0.061 typ. 4 typ. 0.008 8.448 10 typ. 0.084 typ. 1 max., 0.5 typ. 0.008 max. 16.384 10 typ. 0.164 typ. 1 max., 0.5 typ. 0.016 max. 19.44 10 typ. 0.194 typ. 1 max., 0.5 typ. 0.019 max. 20.48 10 typ. 0.205 typ. 1 max., 0.5 typ. 0.020 max. 37.056 10 typ. 0.371 typ. 1 max., 0.5 typ. 0.037 max. 44.736 10 typ. 0.457 typ. 1 max., 0.5 typ. 0.045 max. 49.152 10 typ. 0.492 typ. 1 max., 0.5 typ. 0.049 max. 51.84 10 typ. 0.518 typ. 1 max., 0.5 typ. 0.052 max. 77.76 10 typ. 0.778 typ. 1 max., 0.5 typ. 0.078 max. 125.0 10 typ. 1.25 typ. 1 max., 0.5 typ. 0.125 max. * note: these jitter specs only apply to version 2 models output programming table 7 all scg2000 models tristate free run output 0 0 locked to reference selected (default) 1 x hi-z tristate condition 0 1 free run at nominal frequency alarm status table 8 all scg2000 models lol output lor output alarm output 0 0 no alarm 1 0 loss-of-lock x 1 loss-of-reference
data sheet #: sg035 p age 6 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice tape and reel dimensions figure 5
data sheet #: sg035 p age 7 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice 10.0e-12 100.0e-12 1.0e-3 10.0e-3 100.0e-3 1.0e+0 10.0e+0 integration time ( ) (seconds) tdev (seconds) scg2000 t ypical tdev figure 6 scg2000 t ypical mtie figure 7 100.0e-12 1.0e-9 1.0e-3 10.0e-3 100.0e-3 1.0e+0 10.0e+0 100.0e+0 observation window (s) (seconds) mtie (seconds)
data sheet #: sg035 p age 8 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice scg2000 switch from free run to a new reference figure 8 -60.0e-6 -50.0e-6 -40.0e-6 -30.0e-6 -20.0e-6 -10.0e-6 000.0e+0 012345678 time (sec) phase deviation (sec) -8.0e-6 -7.0e-6 -6.0e-6 -5.0e-6 -4.0e-6 -3.0e-6 -2.0e-6 -1.0e-6 000.0e+0 1.0e-6 2.0e-6 01234567891011 time (sec) phase deviation (sec) scg2000 switch from a reference to free run figure 9
data sheet #: sg035 p age 9 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice -200.0e-9 000.0e+0 200.0e-9 400.0e-9 600.0e-9 800.0e-9 1.0e-6 1.2e-6 45678 time (sec) time (sec) -1.8e+3 -1.6e+3 -1.4e+3 -1.2e+3 -1.0e+3 -800.0e+0 -600.0e+0 -400.0e+0 -200.0e+0 000.0e+0 200.0e+0 4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6 5.8 6 time (sec) frequency (hz) scg2000 1s phase transient response figure 11 scg2000 step response due to a -20ppm freq. step figure 10
data sheet #: sg035 p age 10 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice scg2000 jitter attenuation figure 12 typical system test setup figure 13 target syst em under test possible choice : stanford research model: fs700 arbit rary waveform generator external r e f e r e nc e i n pu t arbit rary waveform generator [noise source] ds1 rate rz (1.544 mhz), e1 rate rz or 8 khz clock rz with noise modulation clock or bi ts l ogic l evel clock input (ttl, cmos, etc.) hp53310a modulation analyzer / time interval analyzer ds1 rate [1.544 mhz] bits bipolar phase error data output sampl e wander g e ne r at i on (t dev ) fo r stm / mstm-s3 100. 0e- 12 1. 0e- 9 10. 0e- 9 100. 0e- 9 1. 0e- 6 1 0. 0 e- 3 1 0 0 . 0e- 3 1. 0 e+0 10. 0e+0 100 .0e+ 01. 0e+3 in t egrati on time (sec) td e v ( se c tdev gr1244- fig5. 1 gr1244 - fig5 - 3 ty pi c al r espons e - 3000 secon d t est - ji t te r applied (2 ui @ 1 0 hz ) r ef da te apr 22 1998 kd h copyr ight 19 98 con nor - winf ie ld a lll r ight s res er ve d s amp le mt i e da t a f o r st m - s 3 / m st m - s 3 1. 0e- 9 10. 0e- 9 100. 0e- 9 1. 0e- 6 100. 0e- 31 .0e +0 10. 0e+ 0100 .0e +0 1. 0 e+3 1 0 .0e +3 ob s e rv at i o n ti m e (s) m ti e ( s mt i e 1244- 5 .2 m as k ( a ) 1244- 5 .2 m as k ( b ) 1244- 5. 6 mask gr253- 5. 4. 4. 3. 2 copyr ig ht 1998 connor -wi n field a ll r ight s r eser ved ty pic al resp onse - 3000 se cond test - jit t er app lied (2 ui @ 10 hz ) ref dat e apr 2 2 1 998 kdh standards compliance documents time-stamped ensemble based on absolute time reference (10mhz input) ds-1, oc-3, oc-12 electrical or optical signals wander analyzer data (ieee-488) 10 mhz this device supplies system time information. it can be thought of as supplying "absolute time" reference information 10 mh z external r e f e r e nc e i n pu t noise modulation input 10 mh z external r e f e r e nc e i n pu t i e ee -4 88 co nt r ol le r platform for software hp 53305a phase analyzer hp e1748a sync measurement tektronix wander analyzer 10 mhz ext ernal reference input timing card line card timing card oc- 3 line card oc- 12 line card oc- 48 line card ds-1 line card . . . . ... mtie, tdev, wander transfer, and wander generation plots tektronix sj300e gps or loran timing source jitter attenuation vs. input frequency -45.0 -40.0 -35.0 -30.0 -25.0 -20.0 -15.0 -10.0 -5.0 0.0 1 10 100 1000 input jitter frequency (hz) jitter attenuation (db)
data sheet #: sg035 p age 11 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice alarm timing diagram figure 14 lol output phase detector external reference internal reference lor output 4 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 2 start-up region start-up region lol output phase detector external reference internal reference lor output 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 2 2 1 1 2 2 1 5 1 19.44 mhz &77.76 mhz reference input units 8 khz reference input units < 31.25 sec 31.25 sec > 31.25 sec < 1 sec > 1 sec 1 sec 2 3 4 125 sec wide range lor is active when lol is active 5 minimum pulse width = 2 sec minimum pulse width = 62.5 sec during start-up, the lol alarm will pulse during the first second of operation
data sheet #: sg035 p age 12 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice solder profile figure 15 temp 0 100 150 200 250 50 12345678 time (minutes) (deg c) recommended reflow profile peak temp: 217 deg c max rise slope: 1.5 deg c/sec time above 150 c: 100 sec ordering information scg{xxxx}-{fff.fff}{m} xxxx equals a specific model (2000, 2010, 2020, 2030, 2050, 2070) fff.fff equals the oscillator output frequency (001.544, 002.048, 008.448, 016.384, 019.44, 020.48, 037.056, 044.736, 049.152, 051.84, 077.76, 125.0) m equals mhz and is added to all part numbers example: to order an scg2000 with an oscillator output of 77.76 mhz, order part number scg2000-077.76m please contact connor-winfield for other frequencies that may be available.
data sheet #: sg035 p age 13 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice scg2000 scg2000 individual features: four selectable references: 8, 16, 32, and 64 khz. oscillator output available: 1.544 mhz to 125.0 mhz. the scg2000 is connor-winfield?s base model for the scg2000 series product line. the scg2000 can lock to one of four input reference frequencies from 8 to 64 khz which is selectable using two input control pins. notes: note 4.0: not available with 19.44 mhz output. input reference selection table 9 scg2000 input sel a input sel b reference frequency (pin #14) (pin #13) (pin #8) 0 0 8 khz (default) 1 0 16 khz 0 1 32 khz (see note 4.0) 1 1 64 khz (see note 4.0) reference and output availability table 10 scg2000 input reference oscillator output reference output (pin #8) (pin #9) (pin #1) 8 khz 19.44 mhz 8 khz 16 khz 16 khz 8 khz 8 khz 16 khz 38.88 mhz 16 khz 32 khz 32 khz 8 khz 8 khz 16 khz 1.544, 2.048, 16.384 20.48, 37.056, 16 khz 32 khz 44.736, 49.152, 51.84 and 77.76 mhz 32 khz 64 khz 64 khz 8 khz 125.0 mhz 8 khz
data sheet #: sg035 p age 14 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice scg2010 scg2010 individual features: input references (pin #8) at 19.44 mhz. oscillator output (pin #9) at 19.44 mhz. reference output (pin #1) at 8 khz. the scg2010 is designed as a clean-up pll with the input reference frequency (pin #8) equal to the oscillator output (pin #9). the reference output frequency (pin #1) is 8 khz. the lol alarm is designed to tolerate 1 s p-p of jitter on the reference. jitter greater than 1 s p-p will result in lol alarm pulses. input reference selection table 11 scg2010 input sel a input sel b reference frequency (pin #14) (pin #13) (pin #8) x x 19.44 mhz (default) x= don?t care reference and output availability table 12 scg2010 input reference oscillator output reference output (pin #8) (pin #9) (pin #1) 19.44 mhz 19.44 mhz 8 khz
data sheet #: sg035 p age 15 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice scg2020 individual features: input references (pin #8) at 19.44 mhz. oscillator output (pin #9) at 77.76 mhz. reference output (pin #1) at 19.44 mhz. the scg2020 accepts a 19.44 mhz input reference (pin #8) and provides a 19.44 mhz output reference (pin #1) and a 77.76 mhz signal output on output #2. the lol alarm is designed to tolerate 1 s p-p of jitter on the reference. jitter greater than 1 s p-p will result in lol alarm pulses. scg2020 input reference selection table 15 scg2020 input sel a input sel b reference frequency (pin #14) (pin #13) (pin #8) x x 19.44 mhz (default) x= don?t care reference and output availability table 16 scg2020 input reference oscillator output reference output (pin #8) (pin #9) (pin #1) 19.44 mhz 77.76 mhz 19.44 mhz
data sheet #: sg035 p age 16 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice the scg2030 is similar to the scg2000 but with a tighter duty cycle of 45/55. scg2030 individual features: four selectable references: 8, 16, 32, and 64 khz. oscillator output available: 1.544 mhz to 125.0 mhz. tight duty cycle scg2030 notes: note 4.0: not available with 19.44 mhz output. input reference selection table 17 scg2030 input sel a input sel b reference frequency (pin #14) (pin #13) (pin #8) 0 0 8 khz (default) 1 0 16 khz 0 1 32 khz (see note 4.0) 1 1 64 khz (see note 4.0) reference and output availability table 18 scg2030 input reference oscillator output reference output (pin #8) (pin #9) (pin #1) 8 khz 19.44 mhz 8 khz 16 khz 16 khz 8 khz 1.544, 2.048, 8.448, 16.384,17.408 mhz 8 khz 16 khz 1.544, 2.048, 8.448, 20.48, 37.056 mhz 16 khz 32 khz 8.448, 16.384, 44.736, 49.152 mhz 32 khz 64 khz 8.448, 51.84 and 77.76 mhz 64 khz 8 khz 125.0 mhz 8 khz
data sheet #: sg035 p age 17 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice scg2050 individual features: four selectable references: 8, 16, 32, and 64 khz. oscillator output available: 77.76 mhz only the scg2050 can use any 1 of 4 selectable input reference frequencies with an oscillator output of 77.76 mhz and a reference output of 19.44 mhz scg2050 input reference selection table 19 scg2050 input sel a input sel b reference frequency (pin #14) (pin #13) (pin #8) 0 0 8 khz (default) 1 0 16 khz 0 1 32 khz 1 1 64 khz reference and output availability table 20 scg2050 input reference oscillator output reference output (pin #8) (pin #9) (pin #1) 8 khz 77.76 mhz 19.44 mhz 16 khz 77.76 mhz 19.44 mhz 32 khz 77.76 mhz 19.44 mhz 64 khz 77.76 mhz 19.44 mhz
data sheet #: sg035 p age 18 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice scg2070 individual features: input references (pin #8) at 19.44 mhz. oscillator output (pin #9) equals reference output (pin #1) the scg2070 is designed to provide two output frequencies that are equal. the reference output is actually a second oscillator output. scg2070 is available with either 77.76 mhz outputs or with 51.84 mhz outputs. the lol alarm is designed to tolerate 1 s p-p of jitter on the reference . jitter greater than 1 s p-p will result in lol alarm pulses. scg2070 input reference selection table 21 scg2070 input sel a input sel b reference frequency (pin #14) (pin #13) (pin #8) x x 19.44 mhz (default) x= don?t care reference and output availability table 22 scg2070 input reference oscillator output reference output (pin #8) (pin #9) (pin #1) 19.44 mhz 77.76 mhz 77.76 mhz 19.44 mhz 51.84 mhz 51.84 mhz
data sheet #: sg035 p age 19 of 20 rev: 00 date: 08/23/04 ? copyright 2004 the connor-winfield corp. all rights reserved specifications subject to change without notice
2111 comprehensive drive aurora, illinois 60505 phone: 630- 851- 4722 fax: 630-851-5040 www.conwin.com revision revision date note 00 8/23/04 final release

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